Power operated window begulator



Oct. 26, 1943.

J. W. LAK!N POWER OPERATED WINDOW REGULATOR Filed March 27 1942 5 Sheets-Sheet 1 'INVENTOR. 577/? W La/fl'n aw w m/ ye.

Oct. 26, 1943.. J. w. LAKIN POWER OPERATED WINDOW REGULATOR Filed March 2'7, I942 3 Sheets-Sheet 2 mwszvrogz. J07m W Lee/em Gator-new.

Oct. 26, 1943. .J. w. LAKlN 2,332,731

POWER OPERATED wmnow REGULATOR Filed March 2'7. 1942 3 Sheets-Sheet 3 YIINVENTQR. VO/Tn W hark m fimi mm Patented Got. 26, 1943 UNITED TA ES rovvhaforanarnn wnmow iatrcmrroit,v John Lakin, Detroit, Mich, assignor to Ternstedt Manufacturing Company, Detroit,; q I Mich; a corporation of Michigan Application 27, 1942, Serial No. 436,478

front and rear panels are ordinarily operated with separate hand cranks. :Howevr, with the type ottorpedo bodies that havebeen used in the last two or three years, the bodies are sof wide that it is very inconveni'ntffor the driverto reach across and operate. theicrankson the curb door. On this account power operatedwindow regulators have been introduced, but these power operated window/regulators are designed to operate only the rear vertical sliding panel.

It is the object of the present invention to aiiord a power operated mechanism for operating the swinging panel. One of the objects of the invention is to provide apparatus which has increasingly greater mechanical advantage as the window closes so as to be able to provide the greatest force in jamming the window against the rubber weatherstrips. Another object is to provide mechanism in which there is an automatic look so it is practically impossible, if not impossible, to pry the window open to get a wire into the car for the purpose of operating the inside handle opening the door.

Referring to the drawings:

Fig. 1 is a plan view of one form vention.

Fig. 2 is an elevation of the same.

Fig. 3 is an end elevation of the same showing the apparatus mounted in thedoor well.

Fig. 4 is a vertical section.

Fig. 5 is a fragmentary side elevation of an automobile showing the Fisher No-Drafti ventilating system.

Fig. 6 is a plan View of a modified form of the invention. I

Fig. 7 is an elevation of this modified form of the apparatus.

Referring to Fig. 5, i designates the sliding rear panel of the Fisher No-Draft ventilating system. 2 designates the swinging panel of this ventilating system which is power operated by the electric motor M in a way now to be described.

Referring to Fig. 2, M is the motor which has of the ina coupling 3 with a shaft 4 on which is a driving drives the worm gear t jwhich is attached to shaft Ill. Referring'toFigl, on the upper end of this shaft is a crank l lwhich has its end. con-" nected with a rack I2 by means of the pivotpin l3. This rack is guided in a loop-like guide M whichv is pivotedion the shaft i5 andholds the rack teeth in engagement with'the teeth of a gear l G. which in turn is boltedto the spindle ll of the ventilating panel by the bolt it.

'When the electric motoris started by a push button, n ot shown, but'which will beflocate d on the instrument board or inside of the door panel,- the worm gearing turns, causing a considerable reduction in the movement-and increasing the mechanical advantage. Referring to Fig. l, the dotted-line showing of the'rack 52 and the'crank l l shows the position of the parts when the ventilating panel is in open position. These panels turn inthe neighborhood of or somewhat beyond a perpendicular position. The shaft ill revolves slowly swinging the crank from the dotted-line position to the full line position shown in Fig. 1. In this positionthe rack l2 and the crank ll form a pair of toggle arms which are on substantially the center-line position. Consequently, it is impossible to open the window by prying it open. Furthermore, as the crank arm approaches the straight-line position with the rack 12, the mechanical'advantage of the crank arm is greatly increased in accordance with the usual operation of a pair of toggle arms. At the same time the movement of the rack is very materially slowed up. This is very advantageous to provide a relatively large force to close the panel tightly against the rubber Weatherstrip 33 and provide an efficient weather seal.

Referring to Figs. 6 and '7 a modified iorm of apparatus which provides these same objectives is shown. Herea motor has a Worm iii-which meshes with worm gear 263, driving shaft 2! and worm 22 which meshes with worm gears 23 and 24. Worm gear 23 is attached to an operating shaft 25 in the upper. end of which is a socket 23 for receiving the spindle of the ventilating panel, sucha spindle as is shown at H in Fig. 2. Here is a direct worm gear drive from the motor to the operating shaft which operates the ventilating panel spindle. In order to provide a greater mechanical advantage as alforded by the toggle arrangement described, in the first form of the invention worm gear 2 drives a crank it fastened to the end of the shaft 28. Crank 2? is provided with a crank pin 29 which engages the arm 39 of lever 3|. Lever BI is connected t me oF- lcEf This gear I6 is fasten edto the shaft ii with a crank arm 32 which is secured on the end of the operating shaft 25. A link 33 connects the end of lever 3| with crank 32 forming a toggle. As gear M is revolved, at the 'same time the gear 23 is revolved by a worm 22, this crank pin 29 strikes the jaw 3&3 of toggle arm 3| during the last stages of the movement of the parts and applies a right-angular thrust to the toggle arms and, consequently, affords a relatively great mechanical advantage.

sealing strips, such as shown1'at- 34 in@Fig. 3, vbut in a different way than that shown-inthetoggle;-

arrangement shown in Fig. l.

What I claim is: p

r This arrangement, therefore, provides arelatively great force for closing the Window-againsvthe"rubber" 1. In a power operated apparatus for closing" a swinging panel in a no-draft ventilatin'g'Z-sys '1 tem, the combination of a shaft rotatably supporte'd'and having thereonfia gear',"sai'd sh'aft" arranged for conhectiomwi'th thefspi'ndletof a swinging ventilatingpa'nel, apcrankarfnpivotally supported, a to'othed' rack "having; a 'pivotal con:

nectionwi'th'the end of thtranharm tq'form' with the' crank arma toggl'and having tits teeth heldin mesh with theteeth' ofthe sai'a'gear; 're'- duction gearing for driving said crank arm" and a motor for operating the reductiongearing'gthe said crank arm andrackfturningflthroli h ap proximately 99 or more to a position where they are substantially in a tstra'i'ght 'line anta} to afford a lock for the swinging panel and also a relatively great mechanical advantagejin closing the window in the finalstages.-

2. Ina power operated apparatus foriclo sing a swinging panel in a-no-draft ventilating system,

the combination of a shaft rotatablyv supported I and having thereon algear,said shaft arranged for connection with'the spindle of a swinging 1 v ventilatingpanel, a crank arm pivotally 'supported, a toothed rack having a pivotal connection with the end of the crank arm to form withthe crank arm a toggle and having its teeth held in mesh 'with the teeth of, the said gear,

a loop-like member pivoted on said shaft and embracing said rack for holding the teeth of the rackin engagement with the teeth of said gear,"'reductiongearing for driving said crank arm and a motor for operating the reduction earing;T .-the-said--crank arm and rack turning I throughwapproximately 90 or more to a position where they are substantially in a straight-line positio'nttoafiord alock for the swinging panel and a1so'" a relatively great mechanical advan I tagein closing the window in the final stages 3. Inapparatu's fforclosing apariel'in a no-draft ventilating 'syste'mfl the combination of'a shaft rotatablys'uppo'rtedand havingthere on a gear, said shaft arranged for connection; V

with" thefspindl of a; swinging ventilating' panel;

a crank farm rotatably supported; a to having a connection fwith'? the end" arm to "form othed r'acl; A 7 v r he'icranli with the Crankfarjh ia g a havin its 'teeth neld n mesh" with thef teeth" or 2 the said gearfreduction:gearing-for fdriving said crank arm,"the"said crankfarirrir and rackturn-"j f'i ing thrdu'gh'anfarcto ajpojs ion wherethey are" substantially in a I 'straight line position to' afford a, 1001; for the swinging pane'l and also a rela echamear adv'antage' in closing the 

